@media screen and (min-width: 1200px)
{
    .teacher_block
    {
        width: 35.5%;
    }

    .teacher_block_last
    {
        width: 29%;
    }

    .margined
    {
        width: 70%;
    }

    .text
    {
        width: 100%;
    }

    .display_in_max_width_480
    {
        display: none;
    }

}/*/mediaquery*/